Jqery and JS get page height, scroll bar height

Web page Visible area width: document.body.clientWidth
Web page Visible Area height: document.body.clientHeight
Web page Visible Area width: document.body.offsetWidth (including edge width)
Web page Visible Area High: document.body.offsetHeight (including edge height)
Page body Full text width: document.body.scrollWidth
Page body Full text High: Document.body.scrollHeight
Page is rolled away High: document.body.scrollTop
Webpage is rolled away left: document.body.scrollLeft
Page body part: Window.screentop
Page body part left: Window.screenleft
High screen resolution: Window.screen.height
Width of screen resolution: Window.screen.width
Screen available work area height: window.screen.availHeight

Screen available work area width: window.screen.availWidth

Jquery

Gets the height of the browser display area: $ (window). Height ();
Gets the width of the browser display area: $ (window). width ();
Gets the document height of the page: $ (document). Height ();
Gets the document width of the page: $ (documents). width ();

Gets the vertical height of the scroll bar to the top: $ (document). ScrollTop ();
Gets the vertical width of the scroll bar to the left: $ (document). ScrollLeft ();

Calculate element position and offset
The offset method is a useful way to return the offset information for the first element in a wrapper set. By default, the offset information is relative to the body. The result contains top and left two properties.
Offset (options, results)
Options.relativeto Specifies the ancestor element relative to the offset position. This element should be relative or absolute positioned. Omitted is relative to body.
Options.scroll whether the scroll bar is counted, by default true
options.padding whether to calculate padding, default false
Options.margin whether margin is counted, by default true
Options.border whether the border is counted, by default true

Jqery and JS get page height, scroll bar height